Abu Qatadah (RA)h (RA), a Companion of the Messenger of Allah ﷺ , said: I entered the mosque, when the Messenger of Allah ﷺ had been sitting among people, and I also sat down among them. Upon this the Messenger of Allah ﷺ said: What prevented you from offering two rakahs (of Nafl prayer) before sitting down? I said: Messenger of Allah, I saw you sitting and people sitting (around you and I, therefore, sat in your company). He (the Holy Prophet) then said: When anyone among you enters the mosque, he should not sit till he has observed two rakahs.